Few-Shot Class-Incremental SAR Image Target Recognition using Self-supervised Decoupled Dynamic Classifier

ZHAO Yan; ZHAO Lingjun; ZHANG Siqian; JI Kefeng; KUANG Gangyao

doi:10.11999/JEIT231470

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ZHAO Yan, ZHAO Lingjun, ZHANG Siqian, JI Kefeng, KUANG Gangyao. Few-Shot Class-Incremental SAR Image Target Recognition using Self-supervised Decoupled Dynamic Classifier[J]. Journal of Electronics & Information Technology. doi: 10.11999/JEIT231470

Citation:

ZHAO Yan, ZHAO Lingjun, ZHANG Siqian, JI Kefeng, KUANG Gangyao. Few-Shot Class-Incremental SAR Image Target Recognition using Self-supervised Decoupled Dynamic Classifier[J]. Journal of Electronics & Information Technology. doi: 10.11999/JEIT231470

Citation:

ZHAO Yan, ZHAO Lingjun, ZHANG Siqian, JI Kefeng, KUANG Gangyao. Few-Shot Class-Incremental SAR Image Target Recognition using Self-supervised Decoupled Dynamic Classifier[J]. Journal of Electronics & Information Technology. doi: 10.11999/JEIT231470

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Few-Shot Class-Incremental SAR Image Target Recognition using Self-supervised Decoupled Dynamic Classifier

doi: 10.11999/JEIT231470

College of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, China

Received Date: 2024-01-10
Rev Recd Date: 2024-06-17

Available Online: 2024-06-24

Abstract

Abstract

To power Deep-Learning (DL) based Synthetic Aperture Radar Automatic Target Recognition (SAR ATR) systems with the capability of learning new-class targets incrementally and rapidly in openly dynamic non-cooperative situations, the problem of Few-Shot Class-Incremental Learning (FSCIL) of SAR ATR is researched and a Self-supervised Decoupled Dynamic Classifier (SDDC) is proposed. Considering solving both the intrinsic Catastrophic forgetting and Overfitting dilemma of the FSCIL and domain challenges of SAR ATR, a self-supervised learning task powered by Scattering Component Mixup and Rotation (SCMR) is designed to improve the model’s generalizability and stability for target representation, leveraged by the partiality and azimuth dependence of target information in SAR imagery. Meanwhile, a Class-Imprinting Cross-Entropy (CI-CE) and a Parameter Decoupled Learning (PDL) strategy are designed to fine-tune networks dynamically to identify old and new targets evenly. Experiments on various FSCIL scenarios constructed by the MSTAR and the SAR-AIRcraft-1.0 datasets covering diverse target categories, observing environments, and imaging payloads, verify the method’s adaptability to openly dynamic world.
- SAR target recognition,
- Few-Shot Class-Incremental Learning(FSCIL),
- Self-supervised learning,
- Deep Learning(DL)

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References(18)

References

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